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MailClient.javaAPI DocExample4136Sat Apr 28 10:22:38 BST 2001None

MailClient

public class MailClient extends JComponent implements MailConstants
Standalone MailClient GUI application.
author
Ian Darwin, ian@darwinsys.com
version
$Id: MailClient.java,v 1.12 2001/04/28 13:22:39 ian Exp $

(Omit source code)

Fields Summary
JButton
quitButton
The quit button
MailReaderBean
mrb
The read mode
MailComposeFrame
mcb
The send mode
AliasBean
alb
The Aliases panel
Constructors Summary
public MailClient()
Construct the MailClient JComponent a default Properties filename

		this(PROPS_FILE_NAME);
public MailClient(String propsFileName)
Construct the MailClient JComponent with no Properties filename

		super();

		// Get the Properties for the mail reader and sender.
		// Save them in System.properties so other code can find them.
		FileProperties mailProps = new FileProperties(propsFileName);
		mailProps.load();

		// Gather some key values
		String proto = mailProps.getProperty(RECV_PROTO);
		String user  = mailProps.getProperty(RECV_USER);
		String pass  = mailProps.getProperty(RECV_PASS);
		String host  = mailProps.getProperty(RECV_HOST);

		if (proto==null)
			throw new IllegalArgumentException(RECV_PROTO + "==null");

		// Protocols other than "mbox" need a password.
		if (!proto.equals("mbox") && (pass == null || pass.equals("ASK"))) {
			String np;
			do {
				//np = JOptionPane.showInputDialog(null,
				//"Please enter password for " + proto + " user  " +
				//		user + " on " + host + "\n" +
				//		"(warning: password WILL echo)",
				//	"Password request", JOptionPane.QUESTION_MESSAGE);

				// Kludge so JOptionPane prompts for password in no-echo.
				// Create "message" using JPanel, JLabel, & JPasswordField
				// Courtesy of Marc Loy.
				JPanel p = new JPanel();
				p.add(new JLabel("Password for " + proto + " user " +
						user + " on " + host));
				JPasswordField jpf = new JPasswordField(20);
				p.add(jpf);
				JOptionPane.showMessageDialog(null, p,
					"Password request", JOptionPane.QUESTION_MESSAGE);
				np = new String(jpf.getPassword());
			} while (np == null || (np != null && np.length() == 0));
			mailProps.setProperty(RECV_PASS, np);
		}

		// Dump them all into System.properties so other code can find.
		System.getProperties().putAll(mailProps);

		// Construct the GUI
		// System.out.println("Constructing GUI");
		setLayout(new BorderLayout());
		JTabbedPane tbp = new JTabbedPane();
		add(BorderLayout.CENTER, tbp);
		tbp.addTab("Reading", mrb = new MailReaderBean());
		tbp.addTab("Sending", mcb = new MailComposeFrame());
		tbp.addTab("Aliases", alb = new AliasBean());
		tbp.addTab("List sending", new JLabel("Under construction",
			JLabel.CENTER));
		add(BorderLayout.SOUTH, quitButton = new JButton("Exit")); 
		// System.out.println("Leaving Constructor");
Methods Summary
public static voidmain(java.lang.String[] av)
"main program" method - run the program


		final JFrame f = new JFrame("MailClient");

		// Start by checking that the javax.mail package is installed!
		try {
			Class.forName("javax.mail.Session");
		} catch (ClassNotFoundException cnfe) {
			JOptionPane.showMessageDialog(f, 
				"Sorry, the javax.mail package was not found\n(" + cnfe + ")",
				"Error", JOptionPane.ERROR_MESSAGE);
			return;
		}

		// create a MailClient object
		MailClient comp;
		if (av.length == 0)
			comp = new MailClient();
		else
			comp = new MailClient(av[0]);
		f.getContentPane().add(comp);

		// Set up action handling for GUI
		comp.quitButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				f.setVisible(false);
				f.dispose();
				System.exit(0);
			}
		});
		f.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				f.setVisible(false);
				f.dispose();
				System.exit(0);
			}
		});

		// Set bounds. Best at 800,600, but works at 640x480
		// f.setLocation(140, 80);
		// f.setSize    (500,400);
		f.pack();

		f.setVisible(true);